<template>
  <div
    class="validCode disabled-select"
    :style="`width:${width}; height:${height}`"
    @click="refreshCode"
  >
    <span
      v-for="(item, index) in codeList"
      :key="index"
      :style="getStyle(item)"
      >{{ item.code }}</span
    >
  </div>
</template>

<script>
export default {
  name: "RandomCode",
  props: {
    width: {
      type: String,
      default: "100px"
    },
    height: {
      type: String,
      default: "40px"
    },
    length: {
      type: Number,
      default: 4
    }
  },
  data() {
    return {
      codeList: []
    };
  },
  mounted() {
    this.createdCode();
  },
  methods: {
    refreshCode() {
      this.createdCode();
    },
    createdCode() {
      let len = this.length,
        codeList = [],
        chars = "ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz0123456789",
        charsLen = chars.length;
      // 生成
      for (let i = 0; i < len; i++) {
        let rgb = [
          Math.round(Math.random() * 220),
          Math.round(Math.random() * 240),
          Math.round(Math.random() * 200)
        ];
        codeList.push({
          code: chars.charAt(Math.floor(Math.random() * charsLen)),
          color: `rgb(${rgb})`,
          fontSize: `1${[Math.floor(Math.random() * 10)]}px`,
          padding: `${[Math.floor(Math.random() * 10)]}px`,
          transform: `rotate(${Math.floor(Math.random() * 90) -
            Math.floor(Math.random() * 90)}deg)`
        });
      }
      // 指向
      this.codeList = codeList;
      // 将当前数据派发出去
      this.$emit("update:value", codeList.map(item => item.code).join(""));
    },
    getStyle(data) {
      return `color: ${data.color}; font-size: ${data.fontSize}; padding: ${data.padding}; transform: ${data.transform}`;
    }
  }
};
</script>

<style lang="scss" scoped>
.validCode {
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bolder;
  cursor: pointer;
  span {
    display: inline-block;
  }
}
</style>
